Liquid crystal display apparatus with a particular microlens arr

Details Liquid crystal display apparatus with a particular microlens arr Liquid crystal display apparatus with a particular microlens arr

1994-10-07

1997-08-05

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

349 57, 349112, G02F 11335, G02F 113

Patent

active

056548109

ABSTRACT:
A liquid crystal display apparatus designed so that the viewing angle dependence is minimized without causing the displayed image to become unsharp. The liquid crystal display apparatus has a display surface (16) for displaying an image by a plurality of pixels, and a backlight (11) disposed at a side of the apparatus which is reverse to the display surface (16) to allow an approximately parallel light beam, which is approximately normal to the display surface (16), to enter each pixel of the display surface. A microlens array (20) is disposed at the viewing side of the display surface (16), and a diffusing element (21) is disposed in the vicinity of a surface conjugate with the display surface (16) which is formed by the microlens array (20).

REFERENCES:
patent: 5046827 (1991-09-01), Frost
patent: 5365354 (1994-11-01), Jannson
patent: 5465175 (1995-11-01), Woodgate
patent: 5471327 (1995-11-01), Tedesco

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